<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Hello</title>
    <script src="ckeditor/ckeditor.js"></script>
</head>
<body>
    <h1>Hi,Hi</h1>
    <textarea name="editor1" id="editor1" rows="20" cols="120">
        This is my textarea to be replaced with CKEditor.
    </textarea>
    <script>
        CKEDITOR.replace( 'editor1' ,{
            filebrowserImageUploadUrl: '/upload/image'
        });
    </script>
</body>
</html>
